(S)-benzyl (1,4-dimethyl-6-oxo-4-(thiophen-2-yl)tetrahydropyrimidin-2(1H)-ylidene)carbamate 、
苯硼酸 在
2,2'-联吡啶 、 2,2,6,6-tetramethyl-piperidine-N-oxyl 、 palladium diacetate 作用下,
以
三氟甲苯 为溶剂,
反应 12.0h,
以60%的产率得到(S)-benzyl (1,4-dimethyl-6-oxo-4-(4-phenylthiophen-2-yl)tetrahydropyrimidin-2(1H)-ylidene)carbamate